Yaskawa SGDB User Manual

Page 296

SERVO SELECTION AND DATA SHEETS

5.3.2 Ratings and Specifications cont.

286

SERVOPACK SGDB-

Speed/

Torque

Control

Mode

Input

Signal

Torque

Refer-

ence

Input Im-

pedance

Approx. 30 kΩ

Speed/

Torque

Control

M d

Input

Signal

Torque

Refer-

ence

Circuit

Time

Constant

Approx. 47 μs

Mode

Built-in Reference

Power Supply

12 V, ¦30 mA

Contact

Speed

Refer-

Rotation

Direction

Selection

Uses P control signal

ence

Speed

Selection

Forward/reverse rotation current control signals are used (1st to 3rd speed

selection).

When both signals are OFF, the motor stops or enters another control mode.

Position

Per-

Bias Setting

0 to 450 r/min (setting resolution: 1 r/min)

Control

Mode

form-

ance

Feed-forward Com-

pensation

0 to 100% (setting resolution: 1%)

Position Complete

Width Setting

0 to 250 reference units (setting resolution: 1 reference unit)

Input

Signal

Refer-

ence

P l

Type

SIGN + PULSE train, 90_ phase difference 2-phase pulse (phase A + phase B),

or CCW + CW pulse train

Pulse

Buffer

Line driver (+5 V level), open collector (+5 V or +12 V level)

Pulse

Frequen-

Max. 450/200 kpps (line driver/open collector)

Control Signal

CLEAR (input pulse form identical to reference pulse)

Built-in Open Collec-

tor Power Supply*

+12 V (with built-in 1 kΩ resistor)

I/O Sig-

nals

Position Output

Output

Form

Phases A, B and C: Line driver output

Phase S: Line driver output (only when 12-bit absolute encoder is used)

a s

Frequen-

cy Divid-

ing Ratio

(16 to N)/N (N: Number of encoder pulses)

Sequence Input

Servo ON, P control (or forward/reverse rotation in contact input speed control

mode), forward rotation prohibited (P-OT), reverse rotation prohibited (N-OT),

alarm reset, forward rotation current limit, and reverse rotation current limit (or

contact input speed control)

Sequence Output

Servo alarm, 3-bit alarm codes

Any 3 of

those

signals

Positioning complete (speed coincidence), TGON, servo ready, current limit,

brake release, overload warning, overload detected

Analog Monitor

Output

Any 2 of

those

signals

Speed: 2 V/1000 r/min or 1 V/1000 r/min

Torque: 2 V/rated torque

Error: 0.05 V/reference unit or 0.05 V/100 reference units

Built-in

Dynamic Brake (DB)

Activated at main power OFF, servo alarm, servo OFF or overtravel

Func-

tions

Regenerative Processing

Incorporated. For 60 to 1A types, external regenerative resistor must be

mounted.

Overtravel (OT) Prevention

Motor is stopped by dynamic brake, decelerates to a stop, or coasts to a stop

when P-OT or N-OT is activated.

Protection

Overcurrent, overload, regenerative error, main circuit voltage error, heat sink

overheat, power open phase, overflow, overspeed, encoder error, encoder

disconnected, overrun, CPU error, parameter error

LED Display

POWER, ALARM, CHARGE

Analog Monitor (5CN)

Same analog monitor signal as 1CN is available.